{"product_id":"sierra-18-7556-crankshaft-sensor-for-mercury-5-0l-6-2l-inboard-1998-2010-replaces-864297001","title":"Sierra Crankshaft Sensor 18-7556 for Mercury 5.0L\/6.2L 1998-2010, Replaces 864297001","description":"\u003cp\u003eThe Sierra 18-7556 Crankshaft Sensor is a direct-fit replacement crankshaft position sensor built for Mercury 5.0L and 6.2L inboard engines from 1998-2010. This sensor mounts to the engine block via a flange mount and monitors crankshaft position to help the ignition system deliver accurate spark timing, a critical function for smooth starting, stable idle, and consistent engine performance. The housing is constructed of metal and is rated to withstand temperatures up to 400 degrees Fahrenheit, standing up to the heat and vibration found in the engine compartment. Each unit ships as a single sensor, ready to install as a one-for-one swap for a failed or worn factory sensor. Sierra builds every replacement part to meet or exceed the specification of the original equipment part it replaces, so performance and fit match what the engine was designed around. This sensor directly replaces Mercruiser Stern Drive part number 864297001 and is intended for boat owners and marine technicians servicing Mercury 5.0L and 6.2L inboard powerplants within the 1998-2010 range. Before ordering, confirm the sensor matches your engine's original equipment specification.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-7556\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Crankshaft Sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.5 x 3.5 x 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.14 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Flange Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Type:\u003c\/strong\u003e Push Button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpper Temperature Rating:\u003c\/strong\u003e 400 Degrees Fahrenheit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282340834\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e One crankshaft sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury 5.0L, 6.2L, 1998-2010\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e864297001\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-7556 crankshaft sensor fit?\u003c\/strong\u003e The 18-7556 fits Mercury 5.0L and 6.2L inboard engines built from 1998 through 2010.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this sensor replace?\u003c\/strong\u003e It is a direct replacement for OEM part number 864297001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the crankshaft sensor made of?\u003c\/strong\u003e The 18-7556 sensor housing is metal, built to hold up to engine-bay heat and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the sensor mount to the engine?\u003c\/strong\u003e It uses a flange mount, matching the original equipment mounting configuration on Mercury 5.0L and 6.2L blocks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature can the sensor withstand?\u003c\/strong\u003e The 18-7556 carries an upper temperature rating of 400 degrees Fahrenheit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-7556 sensor?\u003c\/strong\u003e It measures 3.5 x 3.5 x 1.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the crankshaft sensor weigh?\u003c\/strong\u003e The Sierra 18-7556 weighs 0.14 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e One Sierra 18-7556 crankshaft sensor ships per order; no other hardware is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Mercury part or an aftermarket replacement?\u003c\/strong\u003e The 18-7556 is a Sierra aftermarket replacement, built to meet or exceed the specification of the original equipment sensor it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a crankshaft sensor do on these Mercury engines?\u003c\/strong\u003e On Mercury 5.0L and 6.2L inboard engines, the crankshaft sensor monitors crankshaft position so the ignition system can time spark correctly, which affects starting and idle quality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I confirm fitment before ordering?\u003c\/strong\u003e Yes, check that part number 18-7556 matches your engine's original crankshaft sensor specification before purchasing.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988385214683,"sku":"SIE-18-7556","price":136.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-7556__51202.1558186390.500.750.jpg?v=1785188949","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7556-crankshaft-sensor-for-mercury-5-0l-6-2l-inboard-1998-2010-replaces-864297001","provider":"Good Vibes Marina","version":"1.0","type":"link"}